我正在使用Next.js并想要添加react-semantic-ui，以使用其中一个登录组件。
在前端我收到此错误：编译失败
./node_modules/semantic-ui-css/semantic.min.css
ModuleParseError: Module parse failed: Unexpected character '' (1:0)
You may need an appropriate loader to handle this file type.
(Source code omitted for this binary file)
这是登录组件：
import React from 'react'
import { Button, Form, Grid, Header, Image, Message, Segment } from 'semantic-ui-react'
const Login = () => (
/* login JSX markup */
)
export default Login
这是我的next.config.js
module.exports = {
webpack: (config, { dev }) => {
config.module.rules.push(
{
test: /\.css$/,
loader: 'style-loader!css-loader'
},
{
test: /\.s[a|c]ss$/,
loader: 'sass-loader!style-loader!css-loader'
},
{
test: /\.(png|svg|eot|otf|ttf|woff|woff2)$/,
use: {
loader: "url-loader",
options: {
limit: 100000,
publicPath: "./",
outputPath: "static/",
name: "[name].[ext]"
}
}
},
{
test: [/\.eot$/, /\.ttf$/, /\.svg$/, /\.woff$/, /\.woff2$/],
loader: require.resolve('file-loader'),
options: {
name: '/static/media/[name].[hash:8].[ext]'
}
}
)
return config
}
}
const withCSS = require('@zeit/next-css')
module.exports = withCSS()
这是我的package.js
{
"name": "create-next-example-app",
"scripts": {
"dev": "nodemon server/index.js",
"build": "next build",
"start": "NODE_ENV=production node server/index.js"
},
"dependencies": {
"@zeit/next-css": "^1.0.1",
"body-parser": "^1.18.3",
"cors": "^2.8.5",
"express": "^4.16.4",
"mongoose": "^5.4.19",
"morgan": "^1.9.1",
"next": "^8.0.3",
"react": "^16.8.4",
"react-dom": "^16.8.4",
"semantic-ui-css": "^2.4.1",
"semantic-ui-react": "^0.86.0"
},
"devDependencies": {
"css-loader": "^2.1.1",
"file-loader": "^3.0.1",
"node-sass": "^4.11.0",
"nodemon": "^1.18.10",
"sass-loader": "^7.1.0",
"url-loader": "^1.1.2"
}
}
我在某处读到你必须在pages目录中包含一个_document.js。
// _document is only rendered on the server side and not on the client side
// Event handlers like onClick can't be added to this file
// ./pages/_document.js
import Document, { Html, Head, Main, NextScript } from 'next/document';
class MyDocument extends Document {
static async getInitialProps(ctx) {
const initialProps = await Document.getInitialProps(ctx);
return { ...initialProps };
}
render() {
return (
<Html>
<Head>
<link rel='stylesheet'
href='//cdn.jsdelivr.net/npm/[email protected]/dist/semantic.min.css'
/>
</Head>
<body className="custom_class">
<Main />
<NextScript />
</body>
</Html>
);
}
}
export default MyDocument;
这真的很难吗？
更新
还有另一种方法可以让它发挥作用。当你启动你的下一个应用程序时，你会得到一个组件文件夹，其中包含一个head.js和一个nav.js文件。
head.js文件最终类似于<head></head>中的HTML标签。或者我应该说这就是head.js编写的内容。无论如何，你可以在那里添加：
<link
rel="stylesheet"
href="//cdn.jsdelivr.net/npm/[email protected]/dist/semantic.min.css"
/>
这将有效。
但就像我说你仍然无法导入这样的模块：
import 'semantic-ui-css/semantic.min.css'
如果有人使用next-compose-plugins并得到上述错误，这里有一个修复：
const withCSS = require('@zeit/next-css');
const withImages = require('next-images');
const withPlugins = require('next-compose-plugins');
// fix: prevents error when .css files are required by node
if (typeof require !== 'undefined') {
require.extensions['.css'] = (file) => {};
}
const nextConfig = {
target: 'server',
webpack: (config, { dev }) => {
config.module.rules.push({
test: /\.(raw)(\?v=[0-9]\.[0-9]\.[0-9])?$/,
use: 'raw-loader'
});
return config;
}
};
module.exports = withPlugins([withImages, withCSS({target: 'serverless',
webpack (config) {
config.module.rules.push({
test: /\.(png|svg|eot|otf|ttf|woff|woff2)$/,
use: {
loader: 'url-loader',
options: {
limit: 8192,
publicPath: '/_next/static/',
outputPath: 'static/',
name: '[name].[ext]'
}
}
})
return config
}})], nextConfig);
因此看起来我必须执行以下操作才能使其工作：
把我的next.config.js文件更改为：
const withCSS = require('@zeit/next-css')
module.exports = withCSS({
webpack: function (config) {
config.module.rules.push({
test: /\.(eot|woff|woff2|ttf|svg|png|jpg|gif)$/,
use: {
loader: 'url-loader',
options: {
limit: 100000,
name: '[name].[ext]'
}
}
})
return config
}
})
做一个npm i css-loader file-loader url-loader -D做了伎俩。
但是我很困惑为什么需要css-loader file-loader？我已经习惯了webpack配置你明确添加加载器（就像我们在上面添加url-loader）...我没有必要在这里！